Building-block.



' UNITED STATES iatented August 11, 1905.

PATENT OFFICE.

BUILDING-BLOCK.

SPECIFICATION forming part of Letters Patent No. 735,870, datea'nu ixs't 1i, 190:3.

Application filed April 20, 1905 '1 Serial No- 153,505. (No model.)

blocks; and its objectis to provide an article' of thischaracter which is simple in construction, comparatively inexpensive of production, and by the use of which a thoroughly:

ventilated, strong, and durable wall may be On the ends of the same blocks I also cut erected.

With this and other objects in view the invention consists of certain novel features of construction,combination, and arrangement ot'parts, as will be more fully described, and particularly pointed out in the appended claims. V

In the drawings, Figure l is a perspective view of the front face of a building block or stone embodying-my invention. 'Fig. 2 is a similar view of the rear face or inner side of a block, showing the same recessed or cut away to receive the ends of the joists. Fig. 3 is a plan view of a portion of a wall con.- structed of'my improved blocks or stone s. Fig. 4 isaverticallougitudinal sectional view taken on the line 4 4. of Fig. 3. Fig. 5is a vertical transverse sectional view taken on end grooves 2.

the line 5 5 of Fig. 3.

Referring-to the drawings by numerals and letters, l-denotes a building-block, preferably of oblong: rectangular form and'provided in the vertical groove or channel 2.

3--denotes a ventilating-passage extending longitudinally through the center of the block and having its ends opening into the vertical t denotes a shield or'gua-rd in the a lip or. hood, which extends'overthe ends of the passage 3, for a purpose hereinafter explained. These hoods are of slightly-greater width than the width of the passage ma ext-end out flush or in line with the end of the block or stone.

. 5 denotes vertical ventilating passages,"

which intersect the longitudinal passage 3. Said passages are of an elongated oval shape in cross-section, with their greatest diameter extendinglongitudinally'of the block." These vertical passages or holes are so spaced apart that in the building of the wall when the blocks are placed to break joints they will aline or register with the similar passages in the blocks of the courses above and below.

This is clearly shown in Fig. 4. V In some of the blocks or stones I provide a slot or recess 6, as shown in Fig. 2, to receive and support the end of the floor-joist. This slot 6 is preferably in the center of the block.

away a portion 6, so that a space of suificient size to receive the end of a floor-joist will be formed when the ends of two blocks are placed together.. This is clearly shown in Figs. 2 and 3. desired, supportthe floor-joist A upon a small inlaid block or joist 7. It will be understood that the blocks in which these slots6 and cut-away portions 6 are'formed areonly'used where it is desired to support joists. In some of the blocks '1 also provide a strip of wood 8, which extends longitudinally the entire length-of the block. This strip is for the purpose of attaching molding or other objects to, and when the wall is complete it eX- tends the entire length of-the wall.

Upon reference to Fig. 4 of thedrawings it will be seen that a wall constructed of my improvedbricks will be thoroughly ventilatedby the passages 3 and 5, and in the building of the same the guard hoods or lips 4 willprevent any mortar or cement from entering and' V obstructing the passages The passagex3 in As shownin Fig. 5, I may, if

8 picture-molding or other objects may be attached to the wall Without difliculty and Without injuring or defacing the same.

From the foregoing description, taken in connection with the accompanyingdrawings, the construction and operation of the invention will be readily understood Without requiring a more extended explanation.

Various changes in the form, proportion, and the minor details of construction may be resorted to Without departing from the principle or sacrificing any of the advantages of this invention.

Having thus described my invention, what I claim, and desire to secure by Letters Patcut, is-- 1. A building block provided with end grooves or channels, longitudinal passages communicating with said grooves, transverse passages intersecting said longitudinal passages, and guards or shields in said grooves over the ends of the longitudinal passages, substantially as described.

2. A building block provided with end grooves or channels, a longitudinal passage communicating with said grooves, guard hoods or lips in said grooves over the ends of said passages, and vertical transverse passages intersecting said longitudinal passage, substantially as. described.

3. A building block provided with end grooves or channels, a longitudinal passage comm nnicating with said grooves, guard hoods or lips in said grooves over the ends of said passages and vertical transverse passages intersecting said longitndinal passage, and slots or recesses adapted to receive the floor-joists, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

HARRY ED WIN GOODWIN.

Witnesses:

E. E. SWIGERT, J. O. SVVIGERT. 

